Answer:
P' = (-4,2)
Q' = (-2,5)
R' = (-1,-4)
S' = (-6,-1)
Step-by-step explanation:
Answer:
x = 7 / 2, y = - 5 / 2
Step-by-step explanation:
3x + y = 8 ------> equation 1
3 ( 3x + y = 8 )
9x + 3y = 24 ------> equation 2
x - 3y = 11 ------> equation 3
Add equations 2 & 3,
9x + 3y = 24
x - 3y = 11
_________
10x + 0 = 35
10x = 35
x = 35 / 10
x = 3.5
Substitute x = 3.5 in equation 1,
3x + y = 8
3 ( 3.5 ) + y = 8
10.5 + y = 8
y = 8 - 10.5
y = - 2.5
x = 3.5
= 35 / 10
x = 7 / 2
y = - 2.5
= - 25 / 10
y = - 5 / 2
Answer:
X × 2 - 6
Step-by-step explanation:
"Twice a number" means that it needs to be multiplied by two and "6 less than" means you need to subtract 6 at the end.
Answer:
Step-by-step explanation:
From the diagram you can see that
- 17 people watch only basketball;
- 7 people watch both basketball and soccer;
- 12 people watch only soccer;
- in total, 17+7+12=36 people watch some sports;
- so, 49-36=13 people do not watch sports.
So, you can fill the table in following way
The answer is C
Since we don’t know how much supplies cost in general it would be better to first find out how much the painter charges for the 5 hours
15.28 x 5 = 76.45$
Now that we know that we just need to solve for the difference. So subtract the total cost to the amount he charged for 5 hours of work
157.18 - 76.45 = 80.73
